Hi! When we are pg we get all sorts or weird and wonderful things happening and this is just one of them. I don't think it is your mucous plus as it is far earlier than normal for it to come away, but some women do get a huge increase in the amount of mucous we produce when we are pg. So long as it wasn't blood tinged or smelt offensive, then you should be pretty right. I always found wearing panty liners helped a lot, as did wearing 100% cotton knickers.